i'm fairly sure they'll stick with a symmetric design for their first mouse. i doubt that the final design will look much different from the prototype
dont have ruler to measure length but you can judge from the pic comparison to g pro. but it's very short of course. the point is that in a (pure) fingertip grip, the parts near the palm aren't in contact and hence only contribute unnecessary weight, so why not just chop that part off?
too busy to check forums as regularly
pm me if i forget to respond